When she was born, nobody could hear her heartbeat. Her thoughts were blocked by a shield. Assumed to be dead, Mercy Elizabeth Cullen spent 1 1/2 days in a box underneath the earth until she learned to break free. Upon awakening Mercy discovers the forest around her, and even makes a not-so-human friend. She discovers her special ability. Life isn't as it seems for Mercy when she witnesses Renesmee's growth, and with the threat of the Volturi, what will happen? What if Aro wants her? This is the story of Mercy Elizabeth Cullen, Renesmee's twin sister. ________________________________________ Takes place at the end of "Breaking Dawn Part 1" and throughout "Breaking Dawn Part 2"